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Deloitte & Touche LLP
1100 Carillon Building
227 West Trade Street
Charlotte, NC 28202
USA

Tel: 704-887-1500
Fax: 704-887-1570
www.deloitte.com

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated March 3, 2006, relating to the financial statements of US LEC Corp. appearing in the Annual Report on Form 10-K of US LEC Corp. for the year ended December 31, 2005.

/s/ Deloitte & Touche LLP

Charlotte, North Carolina
April 6, 2006

Member of
Deloitte Touche Tohmatsu